Asked 1 year, 10 months ago. Active 1 year, 8 months ago. Viewed 18k times. My config. What is the correct way to open the serial console from a Linux desktop? Improve this question. Unmanned Player Unmanned Player 1 1 gold badge 2 2 silver badges 5 5 bronze badges. Why have you disabled Bluetooth? Why are you you using obsolete cmdline settings? Correct me if I'm wrong, but your issue is that your computer won't recognize a USB to UART dongle code 71 means "no response packet received within the prescribed bus turn-around time", meaning the device is not replying to USB commands.
This is not really a Pi-4 related issue. DmitryGrigoryev I've tried this with 3 other cables, they all report the same and go extremely hot. Could you please suggest the right way to connect it? Milliways I might've read this page incorrectly then. Hence the question. Sorry, if I'm wrong. What is the correct cmdline?
Add a comment. Active Oldest Votes. Improve this answer. Ingo Ingo But here, I don't see anything. I'll try your method right now and see how far I go.
Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. The Serial Console in the Azure portal provides access to a text-based console for Windows virtual machines VMs and virtual machine scale set instances.
This serial connection connects to the COM1 serial port of the VM or virtual machine scale set instance, providing access to it independent of the network or operating system state. The serial console can only be accessed by using the Azure portal and is allowed only for those users who have an access role of Contributor or higher to the VM or virtual machine scale set. Serial Console works in the same manner for VMs and virtual machine scale set instances.
In this doc, all mentions to VMs will implicitly include virtual machine scale set instances unless otherwise stated. Serial Console is generally available in global Azure regions and in public preview in Azure Government.
It is not yet available in the Azure China cloud. Serial Console is currently incompatible with a managed boot diagnostics storage account. To use Serial Console, ensure that you are using a custom storage account. Your account that uses serial console must have the Virtual Machine Contributor role for the VM and the boot diagnostics storage account. Your VM or virtual machine scale set instance must have a password-based user.
You can create one with the reset password function of the VM access extension. Select Reset password from the Help section. The VM for virtual machine scale set instance must have boot diagnostics enabled. If you are not seeing anything in the serial console, make sure that boot diagnostics is enabled on your VM or virtual machine scale set.
SAC is supported on server versions of Windows but isn't available on client versions for example, Windows 10, Windows 8, or Windows 7. For older Windows Server images created before February , you can automatically enable the serial console through the Azure portal's run command feature. In some cases, VM health information is shown, and in other cases it's blank.
If you need to enable Windows boot loader prompts to display in the serial console, you can add the following additional options to your boot configuration data. For more information, see bcdedit. The timeout that you set for the boot manager menu to display will impact your OS boot time. If you think the second timeout value is too short or too long, set it to a different value. Connect to the serial console. Press Enter , and then enter sign-in credentials with administrative permissions.
A non-maskable interrupt NMI is designed to create a signal that software on a virtual machine won't ignore. Historically, NMIs have been used to monitor for hardware issues on systems that required specific response times. Today, programmers and system administrators often use NMI as a mechanism to debug or troubleshoot systems that are not responding. The serial console can be used to send an NMI to an Azure virtual machine by using the keyboard icon in the command bar.
After the NMI is delivered, the virtual machine configuration will control how the system responds. Windows can be configured to crash and create a memory dump file when receiving an NMI. Function keys are enabled for usage for serial console in Windows VMs. The F8 in the serial console dropdown provides the convenience of easily entering the Advanced Boot Settings menu, but serial console is compatible with all other function keys.
In future, what to be given priority is fluid. We will rearrange our plans actively. For All Shell Lovers. We adopt screen split and tab-shape UI which was popular since old Poderosa as it is.
Flashing quadrangle is normal as caret of terminal, but in new Poderosa, you can use these carets with animation. You can select command entry candidates using the your input history and select them with the function keys. You can also use TouchBar on Macbook!
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